Speaker Microphone:

• Use high impact ABS and Polycarbonate plastic housings for ruggedness
• Use High quality speaker and noise-cancelling mic provide loud and clear sound
• Environmental PU cable reinforced with coiled cord
• Microphone with sturdy plastic 360° rotating clip. The microphone can be clipped on the collar or shoulder position
• Microphone with 3.5mm audio jack
• Undergone comprehensive testing including high altitude performance, vibration, mechanical shock, thermal cycling, external short circuit and overcharge test simulations

U94 PTT:

• Button activated PTT (push to talk) unit with a strong back clip which provides a secure attachment
• Made of high quality ABS, compact size and convenient to carry 
• The metal clip on the back for carrying on vest/strap
• Easy installation and easy to manipulate